数字电视可下载条件接收系统的研究  

Research on Downloadable Conditional Access System for Digital Television

作　　者：熊勇[1] 于鸿洋[1] 

机构地区：[1]电子科技大学电子科学技术研究院,四川成都611731

出　　处：《电视技术》2012年第16期14-15,共2页Video Engineering

基　　金：国家产业技术研究与开发资金资助项目(2009A010100001)

摘　　要：针对有线电视网络朝着双向通信网络的转变以及IPTV的飞速发展,结合数字电视条件接收系统的发展趋势,综合考虑网络运营商和内容提供商在双向通信网络中为业务提供安全保障的需要,设计了双向网络下基于非对称加密算法的可下载条件接收系统,详细论述了可下载条件接收系统的原理结构及工作流程等关键技术。In view of the transformation of cable television networks towards bidirectional communications network and the rapid development of IPTV, combined with the trend of digital TV conditional access system, to cater to the requirement of the security for the business of network providers and content providers in the bidirectional communication network, a downloadable conditional access system based on asymmetric encryption algorithms of bidirectional network is proposed, some key technologies, such as the principle structure and workflow of the downloadable conditional access system, are discussed in detail.

关 键 词：数字电视 条件接收 非对称加密算法 双向通信网络 可下载条件接收系统 

分 类 号：TN949.197[电子电信—信号与信息处理]